Cutting-off machine.



E. H. J. LORENZ.

CUTTING OFF MACHINE.

APPLICATION FILED no.3, 1910.

Patented Oct. 24, 1911.

UNITED simples PATENT OFFICE.

ERNEST H. J. LORENZ, F MADISON, WISCONSIN, ASSIGhIOR TO CHARLES F. BURGESS,

0F MADISON, WISCONSIN.

CUTTING-OFF MACHINE.

To all whom it may concern:

'a citizen of the United States, residing at Madison, county of Dane, State of Wisconsin, have invented certain new and useful Improvements in' Cutting-Off Machines, of.

which the following is a specification.

The main objects of the present invention are to provide means whereby the lining of a can or similar receptacle or article of manufacture may be trimmed or cut away to leave a smooth edge located at a predetermined distance from the top orend of the can; to provide cutting means operative on a wet paper lining; to provide mechanism for pre{ venting injury to the receptacle, even when the receptacle consists of soft material such as zinc; to provide means for automatically turning. or moving the material under treatment during the cutting operation, and in such a way that the speed of movement is governed by the rapidity with which the cutter passes through the material to be cut or trimmed; to provide various details of structure and a special arrangement of parts whereby the cutting-off or trimming operation can be effectively applied to cut away the superfluous stock of a wet paper lining within a zinc can of a kind suit-able as one electrode of a dry battery. N

In the drawings forming a part of this specification, Figure 1 is an elevation of the cutting-off machine with certain of the elements broken away, showing in section, the

' zinc container of a primary battery with its' paper lining; Fig. 2 is an end elevation of the same with the zinc container removed.

In the construction shown, the apparatus comprises a vertical standard having a cylindrical portion 1 and a rectangular portion 2. Adjustably mounted on the cylindrical portion of this standard is an arm or bracket 3, carrying at its outer end a socket within which is a vertical shaft 4:, free to turn or rotate and carrying at its top a 'support or platform 5 on which the work to be trimmed or cut can'be seated. 'The upper end of the rectangular portion 2 of the vertical standard is anchored or supported by a wall-bracket 6. Below this bracketj are two arms 7 and 8, secured rigidly to either side of the standard 2 and carrying at their outer ends 'a pivot 9 on which is mounted a. swinging cutter-head 10. The cutter-head can be swung'outward" about the pivot 9 to facili- Specification of Letters Patent.

Patented Oct. 24., 1911.

Application filed December a, 1910. SeriaI No. 595,354.

tate introduction or removal of the material to be cut ofl'.

As. a means for swinging the cutter-head,

there are provided a pair of links 11 and 12, secured to thecutter-head bya pivot 13 and having at their inner ends a pivotal connection 14 with a bell crank lever 15.- This lever has a lower arm 16, provided with a set screw 17 to serve as a stop for limiting the inward movement of the cutter-head.

Secured to the inner end of the bell'crank lever 15 is a manually operative rod .18, carrying on its upper end a stop 19, forming an abutment for a rubber cushion 20. This cushion limits the amount of power which can be applied to the lever 15 when the rod 18 is depressed. I

Within the cutter-head 10 is a rotary shaft 21., carrying at its lower end a beveled annular cutter 22. This shaft 21 is connected through universal couplings 23 and 24 and a telescoping rectangular drive shaft 25 with a driving pulley 26, over which passes a driving band 27. The rotary cutter, therefore, is driven in a positive manner and at'a predetermined and suitable speedl I The material to be operated'upon is shown in the drawings asconsisting of a zinc can 28, of a kindsuitable as the container for a dry battery. .This can has a recessed bottom fitting over the platform 5 of the rotary support. Within this" can is the usual heavy paper lining 29, which lies directly in contact with the zinc and ordinarily is wetfor damp when the cutting-off or trimming operation .is to be effected. Bearing against the outer surface ofthe can, just opposite itspoint of contact with the cutter 22, is a rotary block 30 of rubber or-similar yield ing material, carried on a pivot 31, which is mounted in a bracket 32, bolted to the side of the rectangular standard 2. This rubber roller affords a yielding seat against which the soft zinc can be pushed by the rotary cutter. Its yielding character allows the cutter to run in direct contact with the zinc, but without danger of cutting into the zinc to a detrimental extent. Two guide arms I 33 and 34 may be mounted at the side of the standard 2 to limit and to guide the movevments of the can.

In normal operation, the manually'opcrative rod 18 is raised, allowing the cutterhead to swing outward and upward about paper lining is then slipped into place on ts work properl I trimming the pap'erlinings of a "b Letters Patent of the United States'is:-

for rotation by tion of an annular and positivel driven rotary cutter,

'tively rotating tion of a allyengage the work andparent to those skilled in the rotary movement of sa1d materal under the platform 5 and the rod 18 depressed to' bring the ositively driven cutter 22 into contact with the-paper lining-29. lhe cutter goes through the paper into contact with thezinc and its friction on the zinc serves to turn the can support 5 at just the proper speed tosinsure most eflicient action of the rotary cutter- If the aper happens to be unusuall tou h or thic or the cutter happens to e d 1 from repeated use, the machine automatically ad usts itself to these unusual conditio s and feeds the paper to the cutter no fasterthan' the cutter can do Although I have herein described an embo iment ofmy inventionwell adapted for .dry battery, its usefulness in other relations will be apart. What'I-claim as new and desire to secure 1. In a cutting-off machine for receptacle, linings, the combination of a positively driven cutter, and means for supporting the work to be cut in position to be moved solely by the friction of said cutter thereon.

2.'-In a cutting-01f machine for receptacle linings, the combination of a positively driven cutter, and a?rotary support for the work to be cut, said sup ort being arranged the friction of said cutter on sald work.

3. In a cutting-oil machine, the combination of a rotary cutter, means for driving said cutter at a definite speed, and a su port for the work tobe out, said support ing arranged'to allow free rotation of said work under the driving'action of said cutter.

.4. In a cutting-oil machine, the combinaand means-for yiel ingly holding material to be cut 'i'nengagement with sa1d cutter, said holdin means admitting fif. t e drivmg' impulse of said rotary cutter.

5. In a cutting-01f machine for can coverings, the combination of a beveled rotary cutter adapted to frictionallyengage the can and thereby move the same, means for posisaid cutter, anda yielding v ter iournaled in block opposed to saidcutter and protecting said can from a dee incision b saidlcutter. 6. In a cutting-o8 m-achine,-. e combinarotary cutter adapted 'to frictiont ereby move the same, means for positively. rotatin cutter, a yieldingro ler bearing on said work opposite said cutter, and a rotary support for'said work allowing free rotation thereof under the driving action of said cutter. 1 7. In a cutting-off machine, the combination of a positively driven rotary cutter,

said a yielding rotary block 'for holding material l tion of a pivoted cutter head, a rotary cuttercarried by said head, means for driving said cutter, means for swinging bring said cutter into engagement with the work to becut, and a yielding roller for holding said work a ainst said cutter.

9. In a cutting-01% machine, the combination of a pivoted cutter-head, a rotary cutter carried by saidhead, means for ositively driving said cutter, a yielding ro er opposite said cutter, means for swinging said cutter into cut-ting position near said roller, and a rota support for holding material bet-ween sai d cutter and said roller, said su port allowing free rotary movement of said material under the driving action of" said cutter.

positively manually operative 10. In a cutting-off machine, the combination of-a' standard, a cutter-head pivotally supported therefrom, fa rotary 'cutter journa ed insaid cutter-head, a rotary support for holding material to be cut in position near said cutter, manually operative means for swin ing said cutter-against said material to be out, said means having a yielding connection with undue materi cutter. 11. In a cuttin -ofi' machine, the combination of a stan ard, a bracket slidingly mounted thereon, a rotary can support carried by said'bracket, a cutter-head pivotally supportedfrom said standard, a rotary cutsaid head, tlve y driving said cutter, supported opposite said'cutter, and manually operative means for yieldingly holding said cutter adjacent said roller, to cut away material passing between said cutter and said roller. -12.Ina-cuttin'g-ofl machine for batterv receptacles, the combination of a standard: 'a .rotary support carried by said standard and adjustable thereon, a cutter-head pivotally mounted on said- V rotarycutter journaled to said cutter-head, 'univers al'couplings connected to said outter, means for driving said cutter through said cutter to prevent and a yielding roller opposite said and means for support-.

said cutter-head to a means for posi-' a yielding. roller pressure of said cutter against said a standard, a beveled said couplings, and manually o erative ing arranged for rotation solely by the friction of said cutter on said work, and means for moving said cutter into and out of engageme'nt with said work.

14. In a cuttlng-oif machine, the combination of a pivoted cutter head, a rotary cutter carried by said head, means for'positively driving said cutter, means for swinging said cutter head tobring said cutter into engage-.

ment with the work to be cut, and a yieldin roller for holding said work against said cutter.

15. In acutting-oif machine, the combination of a pivoted cutter head, a rotary cutter carried by said head, means for posi-' tively driving said cutter, means for swinging said cutter into cutting position, and a rotary support for holding material in position to be out, said support allowing free rotary movement of said material under the ERNEST H. J. LORENZ.

Witnesses:

HENRY CASSON, Jr. DOROTHEA' H. WRIGHT. 

